Allelopathic Effects Mesquite (Prosopis juliflora Swartz) Aqueous Extracts on Seeds Germination and Seedlings Growth of Alfalfa, Sesame and Sorghum

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Mesquite plant [Prosopis juliflora (Swartz) DC] is an invasive, evergreen and multi-purpose leguminous tree or shrub, native to South America. Unfortunately, due to deliberate distribution within Sudan, the plant became a threat to agriculture and biodiversity. The observed absence of ground vegetation under its canopy suggests that it has some allopathic potential that may be caused by fallen fruits, leaves, roots exudates or plant leachates. The release of these allelochemicals in t0 the soil may inhibit the germination and growth of agricultural crops. This study which was under taken in the laboratory of plant pathology, Department of Plant Protection, College of

Agricultural Studies, Sudan University of Science and Technology during January-February, 2016. It was aimed to elucidate the potential of allopathic effects of aqueous extract of different parts of Mesquite plant,- namely fruits, leaves, bark and roots, on germination percentages and early seedlings growth of Alfalfa ,Sesame and Sorghum. The results obtained revealed that the aqueous extracts of different parts of mesquite screened significantly (۾ ≤ ૙. ૙૞) inhibited the seeds germination of the test crops and reduced the early growth of the seedlings with considerable difference compared to control.

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Allelopathic Effects Mesquite (Prosopis juliflora Swartz) Aqueous Extracts on Seeds Germination and Seedlings Growth of Alfalfa, Sesame and Sorghum

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